[Bug math/552] New: Wrong return values for tgamma (0) and tgamma (-0)

[hjl@lucon.org]

According to IEEE Std 1003.1, 2004 Edition:

http://www.opengroup.org/onlinepubs/009695399/functions/tgamma.html

If x is ±0, a pole error shall occur, and tgamma(), tgammaf(), and tgammal()
shall return ±HUGE_VAL, ±HUGE_VALF, and ±HUGE_VALL, respectively.

But glibc returns NAN.

-- 
           Summary: Wrong return values for tgamma (0) and tgamma (-0)
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: math
        AssignedTo: aj at suse dot de
        ReportedBy: hjl at lucon dot org
                CC: glibc-bugs at sources dot redhat dot com


http://sources.redhat.com/bugzilla/show_bug.cgi?id=552

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